1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index b8db32cea1de..bf8de281b4ed 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -18,6 +18,9 @@
  *      duplex (MicroWire) controllers.  Provide chipslect() and txrx_bufs(),
  *      and custom setup()/cleanup() methods.
  */
+
+#include <linux/workqueue.h>
+
 struct spi_bitbang {
         struct workqueue_struct *workqueue;
         struct work_struct      work;